refactor: get_magnet to get_download_link

Rename scraper method get_magnet -> get_download_link in monkrus, rutracker and uztracker. Update downloader code to call .get_download_link and use the .is_magnet flag on tracker objects (replace dict access). Switch direct_download package imports to absolute paths and perform a small import reorder in direct_download/utils.py. These changes unify the download API and adapt call sites to the new tracker interface.

src/network/direct_download/utils.py

@@ -1,5 +1,5 @@
-from utils.logging.logs import consoleLog
 from urllib.parse import urlparse, unquote
+from utils.logging.logs import consoleLog
 from typing import Optional
 import requests
 import os